Naghdi S, Underwood M, Madan J, Brown A, Duncan C, Matharu M et al (2023) Clinical effectiveness of pharmacological interventions for managing chronic migraine in adults: a systematic review and network meta-analysis. J Headache Pain 24(1):164

Article  CAS  PubMed  PubMed Central  Google Scholar 

Sharpe L, Dudeney J, Williams ACC, Nicholas M, McPhee I, Baillie A et al (2019) Psychological therapies for the prevention of migraine in adults. Cochrane Database Syst Rev 7(7):CD012295

PubMed  Google Scholar 

Kristoffersen ES, Lundqvist C, Russell MB (2019) Illness perception in people with primary and secondary chronic headache in the general population. J Psychosom Res 116:83–92

Article  PubMed  Google Scholar 

Westergaard ML, Lau CJ, Allesoe K, Gjendal ST, Jensen RH (2020) Monitoring chronic headache and medication-overuse headache prevalence in Denmark. Cephalalgia 40(1):6–18

Article  PubMed  Google Scholar 

Henning V, Katsarava Z, Obermann M, Moebus S, Schramm S (2018) Remission of chronic headache: Rates, potential predictors and the role of medication, follow-up results of the German Headache Consortium (GHC) Study. Cephalalgia 38(3):551–560

Article  PubMed  Google Scholar 

Nichols VP, Ellard DR, Griffiths FE, Kamal A, Underwood M, Taylor SJC et al (2017) The lived experience of chronic headache: a systematic review and synthesis of the qualitative literature. BMJ Open 7(12):e019929

Article  PubMed  PubMed Central  Google Scholar 

Battista S, Lazzaretti A, Coppola I, Falsiroli Maistrello L, Rania N, Testa M (2023) Living with migraine: a meta-synthesis of qualitative studies. Front Psychol 14:1129926

Article  PubMed  PubMed Central  Google Scholar 

Scaratti C, Covelli V, Guastafierro E, Leonardi M, Grazzi L, Rizzoli PB et al (2018) A qualitative study on patients with chronic migraine with medication overuse headache: comparing frequent and non-frequent relapsers. Headache 58(9):1373–1388

Article  PubMed  Google Scholar 

Palacios-Cena D, Neira-Martin B, Silva-Hernandez L, Mayo-Canalejo D, Florencio LL, Fernandez-de-Las-Penas C et al (2017) Living with chronic migraine: a qualitative study on female patients’ perspectives from a specialised headache clinic in Spain. BMJ Open 7(8):e017851

Article  PubMed  PubMed Central  Google Scholar 

Vivekanantham A, Edwin C, Pincus T, Matharu M, Parsons H, Underwood M (2019) The association between headache and low back pain: a systematic review. J Headache Pain 20(1):82

Article  PubMed  PubMed Central  Google Scholar 

Probyn K, Bowers H, Caldwell F, Mistry D, Underwood M, Matharu M et al (2017) Prognostic factors for chronic headache: a systematic review. Neurology 89(3):291–301

Article  PubMed  PubMed Central  Google Scholar 

Bandura A (1977) Self-efficacy: toward a unifying theory of behavioral change. Psychol Rev 84(2):191–215

Article  CAS  PubMed  Google Scholar 

Henningsen P, Hausteiner-Wiehle C, Hauser W (2022) Migraine in the context of chronic primary pain, chronic overlapping pain disorders, and functional somatic disorders: a narrative review. Headache 62(10):1272–1280

Article  PubMed  Google Scholar 

Underwood M, Achana F, Carnes D, Eldridge S, Ellard DR, Griffiths F et al Non-pharmacological educational and self-management interventions for people with chronic headache: the CHESS research programme including a RCT. Programme Grants for Applied Research. Southampton (UK)2023.

Underwood M, Achana F, Carnes D, Eldridge S, Ellard DR, Griffiths F et al (2023) Supportive self-management program for people with chronic headaches and migraine: a randomized controlled trial and economic evaluation. Neurology 100(13):e1339–e52

Article  PubMed  PubMed Central  Google Scholar 

Kosinski M, Bayliss MS, Bjorner JB, Ware JE Jr., Garber WH, Batenhorst A et al (2003) A six-item short-form survey for measuring headache impact: the HIT-6. Qual Life Res 12(8):963–974

Article  CAS  PubMed  Google Scholar 

Patel S, Achana F, Carnes D, Eldridge S, Ellard DR, Griffiths F et al (2020) Usual care and a self-management support programme versus usual care and a relaxation programme for people living with chronic headache disorders: a randomised controlled trial protocol (CHESS). BMJ Open 10(4):e033520

Article  PubMed  PubMed Central  Google Scholar 

Ellard DR, Nichols VP, Griffiths FE, Underwood M, Taylor SJC (2023) team C. Chronic Headache Education and Self-Management Study (CHESS): a process evaluation. BMC Neurol.;23(1):8

Haywood KL, Mars TS, Potter R, Patel S, Matharu M, Underwood M (2018) Assessing the impact of headaches and the outcomes of treatment: a systematic review of patient-reported outcome measures (PROMs). Cephalalgia 38(7):1374–1386

Article  PubMed  Google Scholar 

Haywood KL, Achana F, Nichols V, Pearce G, Box B, Muldoon L et al (2021) Measuring health-related quality of life in chronic headache: a comparative evaluation of the chronic Headache Quality of Life Questionnaire and Headache Impact Test (HIT-6). Cephalalgia 41(10):1100–1123

Article  PubMed  PubMed Central  Google Scholar 

White K, Potter R, Patel S, Nichols VP, Haywood KL, Hee SW et al (2019) Chronic Headache Education and Self-management study (CHESS) - a mixed method feasibility study to inform the design of a randomised controlled trial. BMC Med Res Methodol 19(1):30

Article  PubMed  PubMed Central  Google Scholar 

Patel S, Potter R, Matharu M, Carnes D, Taylor SJC, Nichols V et al (2019) Development of an education and self-management intervention for chronic headache - CHESS trial (chronic Headache Education and Self-management study). J Headache Pain 20(1):28

Article  PubMed  PubMed Central  Google Scholar 

Nicholas MK (2007) The pain self-efficacy questionnaire: taking pain into account. Eur J Pain 11(2):153–163

Article  PubMed  Google Scholar 

Potter R, Hee SW, Griffiths F, Dodd K, Hoverd E, Underwood M et al (2019) Development and validation of a telephone classification interview for common chronic headache disorders. J Headache Pain 20(1):2

Article  PubMed  PubMed Central  Google Scholar 

Chiarotto A, Vanti C, Cedraschi C, Ferrari S, de Lima ESRF, Ostelo RW et al (2016) Responsiveness and minimal important change of the Pain Self-Efficacy Questionnaire and short forms in patients with chronic low back Pain. J Pain 17(6):707–718

Article  PubMed  Google Scholar 

Johnston BC, Thorlund K, Schunemann HJ, Xie F, Murad MH, Montori VM et al (2010) Improving the interpretation of quality of life evidence in meta-analyses: the application of minimal important difference units. Health Qual Life Outcomes 8:116

Article  PubMed  PubMed Central  Google Scholar 

Martinez-Calderon J, Flores-Cortes M, Morales-Asencio JM, Fernandez-Sanchez M, Luque-Suarez A (2020) Which interventions enhance Pain Self-efficacy in people with Chronic Musculoskeletal Pain? A systematic review with Meta-analysis of Randomized controlled trials, including over 12 000 participants. J Orthop Sports Phys Ther 50(8):418–430

Article  PubMed  Google Scholar 

Hareendran A, Skalicky A, Mannix S, Lavoie S, Desai P, Bayliss M et al (2018) Development of a New Tool for evaluating the benefit of preventive treatments for migraine on functional outcomes - the Migraine Functional Impact Questionnaire (MFIQ). Headache 58(10):1612–1628

Article  PubMed  PubMed Central  Google Scholar 

Haywood K, Potter R, Froud R, Pearce G, Box B, Muldoon L et al (2021) Core outcome set for preventive intervention trials in chronic and episodic migraine (COSMIG): an international, consensus-derived and multistakeholder initiative. BMJ Open 11(11):e043242

Article  PubMed  PubMed Central  Google Scholar 

R Core Team (2023) R: A language and environment for statistical computing. R Foundation for Statistical Computing, Vienna, Austria. https://www.R-project.org/

Tofighi D, MacKinnon DP (2011) RMediation: An R package for mediation analysis confidence intervals. Behav Res 43, 692–700. https://doi.org/10.3758/s13428-011-0076-x